feat: 优化代码

app/src/main/java/io/legado/app/ui/book/read/config/BgTextConfigDialog.kt

@@ -193,7 +193,7 @@ class BgTextConfigDialog : DialogFragment() {
                                 )
                                 .rationale(R.string.bg_image_per)
                                 .onGranted {
-                                    FileUtils.getRealPath(requireContext(), uri)?.let { path ->
+                                    RealPathUtil.getPath(requireContext(), uri)?.let { path ->
                                         ReadBookConfig.getConfig().setBg(2, path)
                                         ReadBookConfig.upBg()
                                         postEvent(EventBus.UP_CONFIG, false)

app/src/main/java/io/legado/app/ui/qrcode/QrCodeActivity.kt

@@ -11,7 +11,7 @@ import io.legado.app.R
 import io.legado.app.base.BaseActivity
 import io.legado.app.help.permission.Permissions
 import io.legado.app.help.permission.PermissionsCompat
-import io.legado.app.utils.FileUtils
+import io.legado.app.utils.RealPathUtil
 import kotlinx.android.synthetic.main.activity_qrcode_capture.*
 import kotlinx.android.synthetic.main.view_title_bar.*
 import org.jetbrains.anko.toast
@@ -98,7 +98,7 @@ class QrCodeActivity : BaseActivity(R.layout.activity_qrcode_capture), QRCodeVie
             zxingview.startSpotAndShowRect() // 显示扫描框，并开始识别
 
             if (resultCode == Activity.RESULT_OK && requestCode == requestQrImage) {
-                val picturePath = FileUtils.getRealPath(this, it)
+                val picturePath = RealPathUtil.getPath(this, it)
                 // 本来就用到 QRCodeView 时可直接调 QRCodeView 的方法，走通用的回调
                 zxingview.decodeQRCode(picturePath)
             }

app/src/main/java/io/legado/app/utils/FileUtils.kt

@@ -1,11 +1,6 @@
 package io.legado.app.utils
 
-import android.content.ContentUris
-import android.content.Context
-import android.net.Uri
 import android.os.Environment
-import android.provider.DocumentsContract
-import android.provider.MediaStore
 import io.legado.app.App
 import java.io.File
 import java.io.IOException
@@ -105,122 +100,4 @@ object FileUtils {
         return sdCardDirectory
     }
 
-    fun getRealPath(context: Context, uri: Uri): String? {
-        // DocumentProvider
-        if (DocumentsContract.isDocumentUri(context, uri)) {
-            // ExternalStorageProvider
-            if (isExternalStorageDocument(uri)) {
-                val docId = DocumentsContract.getDocumentId(uri)
-                val split = docId.split(":")
-                val type = split[0]
-
-                if ("primary".equals(type, ignoreCase = true)) {
-                    @Suppress("DEPRECATION")
-                    return Environment.getExternalStorageDirectory().toString() + "/" + split[1]
-                }
-
-            } else if (isDownloadsDocument(uri)) {
-                val id = DocumentsContract.getDocumentId(uri)
-                val split = id.split(":")
-                val type = split[0]
-                if ("raw".equals(type, ignoreCase = true)) {
-                    //处理某些机型（比如Google Pixel ）ID是raw:/storage/emulated/0/Download/c20f8664da05ab6b4644913048ea8c83.mp4
-                    return split[1]
-                }
-
-                val contentUri = ContentUris.withAppendedId(
-                    Uri.parse("content://downloads/public_downloads"), java.lang.Long.valueOf(id)
-                )
-
-                return getDataColumn(context, contentUri, null, null)
-            } else if (isMediaDocument(uri)) {
-                val docId = DocumentsContract.getDocumentId(uri)
-                val split = docId.split(":".toRegex())
-
-                val contentUri: Uri = when (split[0]) {
-                    "image" -> MediaStore.Images.Media.EXTERNAL_CONTENT_URI
-                    "video" -> MediaStore.Video.Media.EXTERNAL_CONTENT_URI
-                    "audio" -> MediaStore.Audio.Media.EXTERNAL_CONTENT_URI
-                    else -> uri
-                }
-
-                val selection = "_id=?"
-                val selectionArgs = arrayOf(split[1])
-
-                return getDataColumn(context, contentUri, selection, selectionArgs)
-            }// MediaProvider
-            // DownloadsProvider
-        } else if ("content".equals(uri.scheme, ignoreCase = true)) {
-            // Return the remote address
-            return if (isGooglePhotosUri(uri))
-                uri.lastPathSegment
-            else
-                getDataColumn(context, uri, null, null)
-        } else if ("file".equals(uri.scheme, ignoreCase = true)) {
-            return uri.path
-        }// File
-        // MediaStore (and general)
-        return null
-    }
-
-    private fun getDataColumn(
-        context: Context, uri: Uri, selection: String?,
-        selectionArgs: Array<String>?
-    ): String? {
-
-        val column = "_data"
-        val projection = arrayOf(column)
-
-        try {
-            context.contentResolver.query(
-                uri,
-                projection,
-                selection,
-                selectionArgs,
-                null
-            )?.use { cursor ->
-                if (cursor.moveToFirst()) {
-                    val index = cursor.getColumnIndexOrThrow(column)
-                    return cursor.getString(index)
-                }
-            }
-        } catch (e: Exception) {
-            e.printStackTrace()
-        }
-
-        return null
-    }
-
-    /**
-     * @param uri The Uri to check.
-     * @return Whether the Uri authority is ExternalStorageProvider.
-     */
-    private fun isExternalStorageDocument(uri: Uri): Boolean {
-        return "com.android.externalstorage.documents" == uri.authority
-    }
-
-    /**
-     * @param uri The Uri to check.
-     * @return Whether the Uri authority is DownloadsProvider.
-     */
-    private fun isDownloadsDocument(uri: Uri): Boolean {
-        return "com.android.providers.downloads.documents" == uri.authority
-    }
-
-    /**
-     * @param uri The Uri to check.
-     * @return Whether the Uri authority is MediaProvider.
-     */
-    private fun isMediaDocument(uri: Uri): Boolean {
-        return "com.android.providers.media.documents" == uri.authority
-    }
-
-    /**
-     * @param uri The Uri to check.
-     * @return Whether the Uri authority is Google Photos.
-     */
-    private fun isGooglePhotosUri(uri: Uri): Boolean {
-        return "com.google.android.apps.photos.content" == uri.authority
-    }
-
 }

app/src/main/java/io/legado/app/utils/RealPathUtil.kt

@@ -0,0 +1,173 @@
+package io.legado.app.utils
+
+import android.annotation.SuppressLint
+import android.content.ContentUris
+import android.content.Context
+import android.database.Cursor
+import android.net.Uri
+import android.os.Build
+import android.os.Environment
+import android.provider.DocumentsContract
+import android.provider.MediaStore
+import java.io.File
+import java.io.FileInputStream
+import java.io.FileOutputStream
+import java.io.IOException
+
+@Suppress("unused")
+object RealPathUtil {
+    /**
+     * Method for return file path of Gallery image
+     * @return path of the selected image file from gallery
+     */
+    private var filePathUri: Uri? = null
+
+    @Suppress("DEPRECATION")
+    fun getPath(
+        context: Context,
+        uri: Uri
+    ): String? {
+        //check here to KITKAT or new version
+        @SuppressLint("ObsoleteSdkInt")
+        val isKitKat = Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT
+        filePathUri = uri
+        // DocumentProvider
+        if (isKitKat && DocumentsContract.isDocumentUri(context, uri)) { // ExternalStorageProvider
+            if (isExternalStorageDocument(uri)) {
+                val docId = DocumentsContract.getDocumentId(uri)
+                val split = docId.split(":").toTypedArray()
+                val type = split[0]
+                if ("primary".equals(type, ignoreCase = true)) {
+                    return Environment.getExternalStorageDirectory().toString() + "/" + split[1]
+                }
+            } else if (isDownloadsDocument(uri)) {
+                val id = DocumentsContract.getDocumentId(uri)
+                val contentUri = ContentUris.withAppendedId(
+                    Uri.parse("content://downloads/public_downloads"),
+                    java.lang.Long.valueOf(id)
+                )
+                //return getDataColumn(context, uri, null, null);
+                return getDataColumn(context, contentUri, null, null)
+            } else if (isMediaDocument(uri)) {
+                val docId = DocumentsContract.getDocumentId(uri)
+                val split = docId.split(":").toTypedArray()
+                val type = split[0]
+                var contentUri: Uri? = null
+                if ("image" == type) {
+                    contentUri = MediaStore.Images.Media.EXTERNAL_CONTENT_URI
+                } else if ("video" == type) {
+                    contentUri = MediaStore.Video.Media.EXTERNAL_CONTENT_URI
+                } else if ("audio" == type) {
+                    contentUri = MediaStore.Audio.Media.EXTERNAL_CONTENT_URI
+                }
+                val selection = "_id=?"
+                val selectionArgs = arrayOf(
+                    split[1]
+                )
+                return getDataColumn(context, contentUri, selection, selectionArgs)
+            }
+        } else if ("content".equals(
+                uri.scheme,
+                ignoreCase = true
+            )
+        ) { // Return the remote address
+            return if (isGooglePhotosUri(uri)) uri.lastPathSegment else getDataColumn(
+                context,
+                uri,
+                null,
+                null
+            )
+        } else if ("file".equals(uri.scheme, ignoreCase = true)) {
+            return uri.path
+        }
+        return null
+    }
+
+    /**
+     * Get the value of the data column for this Uri. This is useful for
+     * MediaStore Uris, and other file-based ContentProviders.
+     *
+     * @param context The context.
+     * @param uri The Uri to query.
+     * @param selection (Optional) Filter used in the query.
+     * @param selectionArgs (Optional) Selection arguments used in the query.
+     * @return The value of the _data column, which is typically a file path.
+     */
+    private fun getDataColumn(
+        context: Context, uri: Uri?, selection: String?,
+        selectionArgs: Array<String>?
+    ): String? {
+        var cursor: Cursor? = null
+        val column = "_data"
+        val projection = arrayOf(
+            column
+        )
+        var input: FileInputStream? = null
+        var output: FileOutputStream? = null
+        try {
+            cursor =
+                context.contentResolver.query(uri!!, projection, selection, selectionArgs, null)
+            if (cursor != null && cursor.moveToFirst()) {
+                val index = cursor.getColumnIndexOrThrow(column)
+                return cursor.getString(index)
+            }
+        } catch (e: IllegalArgumentException) {
+            e.printStackTrace()
+            val file = File(context.cacheDir, "tmp")
+            val filePath = file.absolutePath
+            try {
+                val pfd =
+                    context.contentResolver.openFileDescriptor(filePathUri!!, "r")
+                        ?: return null
+                val fd = pfd.fileDescriptor
+                input = FileInputStream(fd)
+                output = FileOutputStream(filePath)
+                var read: Int
+                val bytes = ByteArray(4096)
+                while (input.read(bytes).also { read = it } != -1) {
+                    output.write(bytes, 0, read)
+                }
+                input.close()
+                output.close()
+                return File(filePath).absolutePath
+            } catch (ignored: IOException) {
+                ignored.printStackTrace()
+            }
+        } finally {
+            cursor?.close()
+        }
+        return null
+    }
+
+    /**
+     * @param uri The Uri to check.
+     * @return Whether the Uri authority is ExternalStorageProvider.
+     */
+    private fun isExternalStorageDocument(uri: Uri): Boolean {
+        return "com.android.externalstorage.documents" == uri.authority
+    }
+
+    /**
+     * @param uri The Uri to check.
+     * @return Whether the Uri authority is DownloadsProvider.
+     */
+    private fun isDownloadsDocument(uri: Uri): Boolean {
+        return "com.android.providers.downloads.documents" == uri.authority
+    }
+
+    /**
+     * @param uri The Uri to check.
+     * @return Whether the Uri authority is MediaProvider.
+     */
+    private fun isMediaDocument(uri: Uri): Boolean {
+        return "com.android.providers.media.documents" == uri.authority
+    }
+
+    /**
+     * @param uri The Uri to check.
+     * @return Whether the Uri authority is Google Photos.
+     */
+    private fun isGooglePhotosUri(uri: Uri): Boolean {
+        return "com.google.android.apps.photos.content" == uri.authority
+    }
+}

app/src/main/java/io/legado/app/utils/UriExtensions.kt

@@ -2,15 +2,14 @@ package io.legado.app.utils
 
 import android.content.Context
 import android.net.Uri
-import androidx.documentfile.provider.DocumentFile
 import java.io.File
 
 @Throws(Exception::class)
 fun Uri.readBytes(context: Context): ByteArray? {
-    if (DocumentFile.isDocumentUri(context, this)) {
+    if (this.toString().isContentPath()) {
         return DocumentUtils.readBytes(context, this)
     } else {
-        val path = FileUtils.getRealPath(context, this)
+        val path = RealPathUtil.getPath(context, this)
         if (path?.isNotEmpty() == true) {
             return File(path).readBytes()
         }
@@ -20,10 +19,10 @@ fun Uri.readBytes(context: Context): ByteArray? {
 
 @Throws(Exception::class)
 fun Uri.readText(context: Context): String? {
-    if (DocumentFile.isDocumentUri(context, this)) {
+    if (this.toString().isContentPath()) {
         return DocumentUtils.readText(context, this)
     } else {
-        val path = FileUtils.getRealPath(context, this)
+        val path = RealPathUtil.getPath(context, this)
         if (path?.isNotEmpty() == true) {
             return File(path).readText()
         }
@@ -33,10 +32,10 @@ fun Uri.readText(context: Context): String? {
 
 @Throws(Exception::class)
 fun Uri.writeBytes(context: Context, byteArray: ByteArray): Boolean {
-    if (DocumentFile.isDocumentUri(context, this)) {
+    if (this.toString().isContentPath()) {
         return DocumentUtils.writeBytes(context, byteArray, this)
     } else {
-        val path = FileUtils.getRealPath(context, this)
+        val path = RealPathUtil.getPath(context, this)
         if (path?.isNotEmpty() == true) {
             File(path).writeBytes(byteArray)
             return true
@@ -47,10 +46,10 @@ fun Uri.writeBytes(context: Context, byteArray: ByteArray): Boolean {
 
 @Throws(Exception::class)
 fun Uri.writeText(context: Context, text: String): Boolean {
-    if (DocumentFile.isDocumentUri(context, this)) {
+    if (this.toString().isContentPath()) {
         return DocumentUtils.writeText(context, text, this)
     } else {
-        val path = FileUtils.getRealPath(context, this)
+        val path = RealPathUtil.getPath(context, this)
         if (path?.isNotEmpty() == true) {
             File(path).writeText(text)
             return true